JPH0421329Y2

JPH0421329Y2 -

Info

Publication number: JPH0421329Y2
Application number: JP10752586U
Authority: JP
Priority date: 1986-07-14
Filing date: 1986-07-14
Publication date: 1992-05-15
Also published as: JPS6313061U

Description

【考案の詳細な説明】（産業上の利用分野）本考案は寝台に於ける背上げ機構に関するもの
である。[Detailed Description of the Invention] (Field of Industrial Application) The present invention relates to a mechanism for raising the back of a bed.

（従来の技術およびその問題点）背上げベツドに仰臥している人を、背部床の回
動上昇により、背上げの姿勢で支持するに際し
て、背部は例えば最大70度〜75度の傾斜角度で支
持する場合でも、頭部はそれよりも起こした状態
にした方が楽な姿勢となり、かかる状態で頭部を
支持し得るようにするのが好ましい。しかしなが
ら従来の背上げベツドでは、背部床で頭部をこの
ように支持することはできない。枕をヘツドレス
トとして使用すれば背上げの姿勢に於いても頭部
を楽な姿勢に支持することができるが、枕の使用
は、それが動いたり、落下したりして煩わしい。(Prior art and its problems) When supporting a person lying on a back-up bed in a back-up position by rotating and raising the back floor, the back is tilted at a maximum inclination angle of, for example, 70 degrees to 75 degrees. Even when supporting the head, it is more comfortable to keep the head in an upright position, and it is preferable to support the head in this position. However, conventional raised back beds do not support the head in this way on the back floor. If a pillow is used as a headrest, it is possible to support the head in a comfortable position even when the back is raised, but using a pillow is cumbersome because it moves or falls.

本考案は背部床自体の部分をヘツドレストとし
て使用し得るようにすると共に、その使用は背部
床の回動上昇に連動して行なえるようにすること
を目的とするものである。 The object of the present invention is to enable a portion of the back floor itself to be used as a headrest, and to enable this use to be performed in conjunction with the rotation and rise of the back floor.

（問題点を解決するための手段）本考案を、実施例に対応する第１図、第２図に
基づいて説明すると、本考案は、一側ａを床支持
フレーム１に回動自在に支持した背部床主体２の
他側ｂに背部床従体３を屈曲自在に連結し、前記
床支持フレーム１に、前記主体２の回動支点ｃよ
りも従体３側下方を支点ｄとし、該従体３方向に
突出した押上杆４を回動自在に設けると共に、前
記主体２の下部に該押上杆４に当接するローラー
５を設け、前記従体３の下部に突設した押上部６
に作動リンク７の一側を連結すると共に、該作動
リンク７の他側ｆは、てこリンク８の一側に連結
し、該てこリンク８は、中間部ｅを前記主体２の
下部に突設した支持部９に回動自在に固定すると
共に、該てこリンク８の他側は駆動リンク１０を
介して駆動杆１１の移動部材１２に連結し、更に
該移動部材１２には前記押上杆４駆動用の駆動腕
１３の一側を連結したものである。(Means for Solving the Problems) The present invention will be explained based on FIGS. 1 and 2, which correspond to embodiments. A back floor follower 3 is bendably connected to the other side b of the back floor main body 2, and is attached to the floor support frame 1 with a fulcrum d below the pivot point c of the main body 2 on the side of the follower 3. A push-up rod 4 protruding in the direction of the slave body 3 is rotatably provided, a roller 5 is provided at the lower part of the main body 2 that comes into contact with the push-up rod 4, and a push-up part 6 protrudes from the lower part of the slave body 3.
One side of the operating link 7 is connected to the main body 2, and the other side f of the operating link 7 is connected to one side of the lever link 8, and the lever link 8 has an intermediate portion e projecting from the lower part of the main body 2. The other side of the lever link 8 is connected to a movable member 12 of a drive rod 11 via a drive link 10, and the movable member 12 is connected to the drive rod 4 drive. One side of the drive arm 13 for use is connected.

（作用）しかして、第１図ａに示すように主体２が水平
状態にある時には、従体３も水平状態に、即ち主
体と同一平面上に支持されており、こうして従来
の背部床と同様な態様で使用することができる。(Function) Therefore, when the main body 2 is in a horizontal state as shown in FIG. It can be used in various ways.

かかる第１図ａの状態に於いて、駆動杆１１を
作動して移動部材１２を図中左方向に移動する
と、駆動腕１３によつて押上杆４が支点ｄに於い
て時計回りに回動し、該押上杆４はローラー５を
押し上げ、従つて主体２は第１図ａからｂ，ｃで
示すように回動上昇する。 In the state shown in FIG. 1a, when the drive rod 11 is actuated to move the movable member 12 to the left in the figure, the pusher rod 4 is rotated clockwise around the fulcrum d by the drive arm 13. The push rod 4 pushes up the roller 5, so that the main body 2 rotates upward as shown in FIG. 1 from a to b and c.

移動部材１２は、このようにして主体２を回動
上昇させると同時に駆動リンク１０の一側ｇを図
中左方向に移動する。いま駆動リンク１０の一側
ｇのかかる移動を無視し、第１図ａの状態に於い
て固定されていると仮定すると、主体２が回動上
昇して、支持部９によりてこリンク８が引き上げ
られると、駆動リンク１０の一側ｇとてこリンク
８の一側ｆ間の間隔が次第に広がるので、該てこ
リンク８は中間部ｅを支点として支持部９に対し
て相対的に反時計回りに回動して所定のてこ比に
より作動リンク７を左方向に移動させ、従つて押
上部６を介して従体３を主体２に対して回動上昇
させる。このように駆動リンク１０の一側ｇの移
動を無視して考えると、従体３は主体２の回動上
昇と共に次第に該主体２に対して回動上昇してい
くのである。ところが実際には駆動リンク１０の
一側ｇは主体２の回動上昇と共に図中左方向に移
動するのであり、この方向への駆動リンク１０の
移動は前記２点ｇ，ｆ間の間隔を次第に狭めて、
てこリンク８を前述と逆の時計回りに回動させる
ように作用するので、前述した反時計回りの回動
を減殺し、従体３の主体２に対しての回動量はこ
れらの差となる。そして駆動リンク１０の移動量
に対しての前記２点ｇ，ｆ間の間隔の変化率は、
主体２の傾斜が緩い程大きく、急になる程小さく
なる。従つて従体３は、主体２の回動上昇に際し
て、この主体２の傾斜が緩いうちは余り回動上昇
せず、ある角度（例えば約45度）を過ぎてから次
第に回動上昇をし始め、そして急傾斜となるにつ
れて回動上昇が顕著になる。 In this way, the moving member 12 rotates and raises the main body 2, and at the same time moves one side g of the drive link 10 to the left in the figure. Now, ignoring such movement of one side g of the drive link 10 and assuming that it is fixed in the state shown in FIG. As the distance between the one side g of the drive link 10 and the one side f of the lever link 8 gradually increases, the lever link 8 rotates counterclockwise relative to the support portion 9 with the intermediate portion e as a fulcrum. The actuating link 7 is rotated to the left with a predetermined leverage ratio, and the slave body 3 is rotated upward relative to the main body 2 via the push-up part 6. Ignoring the movement of one side g of the drive link 10 in this manner, the slave body 3 gradually rotates upward with respect to the main body 2 as the main body 2 rotates upward. However, in reality, one side g of the drive link 10 moves to the left in the figure as the main body 2 rotates upward, and the movement of the drive link 10 in this direction gradually increases the distance between the two points g and f. narrow it down,
Since it acts to rotate the lever link 8 in the opposite clockwise direction, the aforementioned counterclockwise rotation is reduced, and the amount of rotation of the subordinate body 3 with respect to the main body 2 is the difference between these. . The rate of change in the distance between the two points g and f with respect to the amount of movement of the drive link 10 is:
The gentler the slope of the main body 2, the larger the slope, and the steeper the slope, the smaller the slope. Therefore, when the main body 2 rotates upward, the slave body 3 does not rotate upward much while the main body 2 is tilted gently, but after passing a certain angle (for example, about 45 degrees), the slave body 3 gradually begins to rotate upward. , and as the slope becomes steeper, the increase in rotation becomes more noticeable.

このようにして本考案は例えば第１図ｃに示す
ように主体２が70〜75度程度の傾斜角度となつた
時に従体３が略垂直状態となり、ヘツドレストと
して使用者の頭部を支持することができる。そし
て従体３は前述したように、主体２の傾斜が緩い
うち、即ちヘツドレストが不要のうちは余り回動
上昇しないので使用者に違和感を与えない。 In this way, in the present invention, when the main body 2 is tilted at an inclination angle of about 70 to 75 degrees as shown in FIG. be able to. As described above, the slave body 3 does not rotate upward much while the main body 2 is tilted gently, that is, the headrest is not required, so that the user does not feel uncomfortable.

（考案の効果）本考案は以上の通り、背部床を、床支持フレー
ムに回動自在に支持した背部床主体と、該主体に
屈曲自在に連結した従体とから構成し、該従体を
主体の回動上昇に連動させて、該主体に対して回
動上昇させるように構成したので、主体を背上げ
の状態とした場合には自動的に従体が更に急傾斜
となつてヘツドレストとして機能し、従つて枕を
使用する場合のような煩わしさがなく、使用者に
安楽な姿勢に支持し得るという効果がある。殊に
本考案は、主体の傾斜が緩く、ヘツドレストが不
要なうちは従体が余り回動上昇しないので、使用
者に違和感を抱かせることもないという効果があ
る。(Effects of the invention) As described above, the present invention consists of a back floor that is rotatably supported on a floor support frame, and a slave body that is bendably connected to the base body. As the main body rotates and rises, it is configured to rotate upward relative to the main body, so when the main body is placed in a back-up position, the follower body automatically becomes more steeply inclined and acts as a head rest. This has the effect of supporting the user in a comfortable posture without the inconvenience of using a pillow. In particular, the present invention has the effect that the main body is gently inclined and the slave body does not rotate or rise much while the headrest is not required, so that the user does not feel uncomfortable.

[Brief explanation of the drawing]

第１図ａ，ｂ，ｃは本考案の機構の実施例に対
応する構成及び動作を示す模式的説明図、第２図
ａ，ｂは本考案の機構の実施例に対応する構成及
び動作を示す、夫々斜視図、要部拡大斜視図であ
る。符号、１……床支持フレーム、２……背部床主
体、３……背部床従体、４……押上杆、５ローラ
ー、６……押上部、７……作動リンク、８……て
こリンク、９……支持部、１０……駆動リンク、
１１……駆動杆、１２……移動部材、１３……駆
動腕。 Figures 1a, b, and c are schematic explanatory diagrams showing the configuration and operation corresponding to an embodiment of the mechanism of the present invention, and Figures 2a and b are schematic illustrations showing the configuration and operation corresponding to an embodiment of the mechanism of the present invention. They are a perspective view and an enlarged perspective view of essential parts, respectively. Code, 1... Floor support frame, 2... Back floor main body, 3... Back floor follower, 4... Push up lever, 5 Roller, 6... Push up part, 7... Operation link, 8... Lever link , 9... Support part, 10... Drive link,
11... Drive rod, 12... Moving member, 13... Drive arm.

Claims

[Scope of utility model registration request]

A back floor slave body is rotatably supported on one side by a floor support frame, and a back floor follower is bendably connected to the other side of the back floor body, and a lower part of the slave side than a pivot point of the main body is attached to the floor support frame as a fulcrum. A push rod protruding in the direction of the slave body is rotatably provided, a roller is provided at the lower part of the main body that comes into contact with the push rod, and an operating link is provided on the pusher part protruding from the lower part of the slave body. and the other side of the actuating link is connected to one side of a lever link, the lever link having an intermediate portion rotatably fixed to a support protruding from the lower part of the main body, The other side of the lever link is connected to a moving member of a driving rod via a driving link, and one side of the driving arm for driving the push-up rod is connected to the moving member. Back lift mechanism.